ASTROSAT CZTI

Data Quality Report

Orbit 06062

Creation date: 2024-06-27T15:02:17.933889
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G06_130T01_9000000782_06062cztM0_level2.evt modeM0/AS1G06_130T01_9000000782_06062cztM0_level2_quad_clean.evt
Size (bytes)272,450,88069,883,200
Size259.8 MB 66.6 MB
Events in quadrant A2,149,397468,681
Events in quadrant B2,353,269472,463
Events in quadrant C1,699,230466,317
Events in quadrant D1,797,074447,744

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089552
B094921
C076343
D079451

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3695561.515562%
B36951564.221922%
C3694290.785057%
D3695421.136671%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 4845 3695 1 1 0.02% 0.03%
B 4845 3695 73 73 1.51% 1.98%
C 4845 3696 0 0 0.00% 0.00%
D 4845 3696 7 7 0.14% 0.19%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 8 15 438452 4757.15 443 434 92.1
A 12 194 4339 42.41 443 434 92.1
A 0 226 4293 41.91 443 434 92.1
B 3 64 481091 5599.68 446 436 85.8
B 0 214 74547 863.4 446 436 85.8
B 15 204 23478 268.44 446 436 85.8
C 1 16 13974 135.64 431 432 99.8
C 13 61 3507 30.8 431 432 99.8
C 8 222 1521 10.91 431 432 99.8
D 12 221 65208 607.16 431 416 106.7
D 2 206 22144 203.61 431 416 106.7
D 13 169 21776 200.16 431 416 106.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter